Royal Caribbean International will base Quantum of the Seas in Seattle to further bolster its 2021 Alaska programme.

The 4,180-passenger vessel will join Ovation of the Seas, Radiance of the Seas and Serenade of the Seas in the north-west Pacific region.

The 2021 summer season will be the line’s largest ever Alaska deployment. Bookings are now open.

From May 2021, Quantum will offer seven-night cruises out of Seattle every Monday alongside Ovation which will depart on Fridays.

Prices for Quantum’s Alaska Glacier Cruise, departing Seattle on May 24, 2021, calling at Juneau, Sitka, both Alaska, and Victoria, British Columbia, start from £1,050.

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In addition to Seattle, sailings are also available from Vancouver, Canada, and Seward, Alaska.

Royal had released its Alaska programme for next year, but added Quantum in light of the coronavirus pandemic.

The ship had been based in Shanghai from 2015, before switching to Singapore last year.

A glass observation capsule called the North Star which is positioned 300 feet above sea level is one of the key features on Quantum.

Royal claims Quantum also has the largest indoor activity area at sea, SeaPlex, where passengers can drive bumper cars, do roller skating and play basketball.

The ship has 18 dining venues, including Wonderland, which offers passengers an imaginative dining experience, and Jamie’s Italian, where handmade pasta is available.